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Cheap flights from Saint Thomas Island to Washington, D.C. from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint Thomas Island to Washington, D.C. departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$261United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
1:22 pm - 10:49 pm
STT
-
IAD
9h 27m
1 stop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$266United Airlines
Fri, May 1 - Sun, May 3
Delta Logo
3:05 pm - 12:42 am
STT
-
IAD
9h 37m
1 stop
Delta Logo
6:00 am - 1:51 pm
IAD
-
STT
7h 51m
1 stop
$270Delta
Thu, Apr 16 - Mon, Apr 20
Delta Logo
3:05 pm - 12:42 am
STT
-
IAD
9h 37m
1 stop
Delta Logo
6:00 am - 2:48 pm
IAD
-
STT
8h 48m
1 stop
$291Delta
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
1:22 pm - 9:04 pm
STT
-
IAD
7h 42m
1 stop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$356United Airlines
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$372United Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
10:49 am - 7:27 am
STT
-
IAD
20h 38m
1 stop
Multiple Airlines Logo
7:11 pm - 12:47 pm
IAD
-
STT
17h 36m
2 stops
$374Multiple Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$382United Airlines
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
1:22 pm - 9:04 pm
STT
-
IAD
7h 42m
1 stop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$387United Airlines
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
4:45 pm - 8:58 pm
STT
-
IAD
4h 13mnonstop
United Airlines Logo
8:15 am - 12:20 pm
IAD
-
STT
4h 05mnonstop
$423United Airlines
Thu, Apr 16 - Mon, Apr 20

American Airlines flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Mar 31
STT12:45 pmSaint Thomas Island Cyril E King
7h 44m
1 stop
IAD8:29 pmWashington, D.C. Dulles Intl
Apr 14
IAD7:16 amWashington, D.C. Dulles Intl
7h 34m
1 stop
STT2:50 pmSaint Thomas Island Cyril E King
$338
American Airlines
Jul 16
STT11:43 amSaint Thomas Island Cyril E King
12h 27m
1 stop
IAD12:10 amWashington, D.C. Dulles Intl
Jul 23
IAD6:33 amWashington, D.C. Dulles Intl
7h 15m
1 stop
STT1:48 pmSaint Thomas Island Cyril E King
$565
American Airlines
Jun 25
STT11:52 amSaint Thomas Island Cyril E King
7h 41m
1 stop
IAD7:33 pmWashington, D.C. Dulles Intl
Jun 29
IAD6:18 amWashington, D.C. Dulles Intl
9h 44m
1 stop
STT4:02 pmSaint Thomas Island Cyril E King
$600

United Airlines flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
May 1
STT4:45 pmSaint Thomas Island Cyril E King
4h 13m
IAD8:58 pmWashington, D.C. Dulles Intl
May 3
IAD8:15 amWashington, D.C. Dulles Intl
4h 05m
STT12:20 pmSaint Thomas Island Cyril E King
$261
United Airlines
May 1
STT1:22 pmSaint Thomas Island Cyril E King
9h 27m
1 stop
IAD10:49 pmWashington, D.C. Dulles Intl
May 3
IAD8:15 amWashington, D.C. Dulles Intl
4h 05m
STT12:20 pmSaint Thomas Island Cyril E King
$266
United Airlines
Apr 16
STT1:22 pmSaint Thomas Island Cyril E King
7h 42m
1 stop
IAD9:04 pmWashington, D.C. Dulles Intl
Apr 20
IAD8:15 amWashington, D.C. Dulles Intl
4h 05m
STT12:20 pmSaint Thomas Island Cyril E King
$356

momondo Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Fri 5/1

4:45 pm-8:58 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sun 5/3

8:15 am-12:20 pm

Nonstop4h 05m

$261

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Fri 5/1

1:22 pm-10:49 pm

1 stop9h 27m

Washington, D.C. Dulles Intl

Sun 5/3

8:15 am-12:20 pm

Nonstop4h 05m

$266

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

3:05 pm-12:42 am

1 stop9h 37m

Washington, D.C. Dulles Intl

Mon 4/20

6:00 am-1:51 pm

1 stop7h 51m

$270

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

3:05 pm-12:42 am

1 stop9h 37m

Washington, D.C. Dulles Intl

Mon 4/20

6:00 am-2:48 pm

1 stop8h 48m

$291

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

1:22 pm-9:04 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Mon 4/20

8:15 am-12:20 pm

Nonstop4h 05m

$356

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

4:45 pm-8:58 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Mon 4/20

8:15 am-12:20 pm

Nonstop4h 05m

$372

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Fri 5/1

10:49 am-7:27 am

1 stop20h 38m

Washington, D.C. Dulles Intl

Sun 5/3

7:11 pm-12:47 pm

2 stops17h 36m

$374

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

4:45 pm-8:58 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Mon 4/20

8:15 am-12:20 pm

Nonstop4h 05m

$382

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

1:22 pm-9:04 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Mon 4/20

8:15 am-12:20 pm

Nonstop4h 05m

$387

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 4/16

4:45 pm-8:58 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Mon 4/20

8:15 am-12:20 pm

Nonstop4h 05m

$423

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $490. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Saint Thomas Island to Washington, D.C. Dulles Intl Airport for around $729.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the morning is the least expensive time of day to depart. momondo users have found prices as low as $599 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $665 on average. Flights to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flight route?

Fly from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl for the best Saint Thomas Island Cyril E King - Washington, D.C. Dulles Intl flight prices

What cabin class options are available on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Saint Thomas Island to Washington, D.C. Dulles Intl Airport.

How have Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight prices changed over time?

When to book flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Saint Thomas Island to Washington, D.C. Dulles Intl Airport (STT to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Best Price Found

$332

Fastest flight time

4h 13m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the past 72 hours is $332. The best round-trip flight deal from Saint Thomas Island to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $495.
The fastest flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport takes 4h 13m
Direct flights go from Saint Thomas Island to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl by plane?

    Saint Thomas Island Cyril E King and Washington, D.C. Dulles Intl are 1608.5 mi apart from one another. Flights usually cover this in 4h 13m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,509 reviews
Search United Airlines flights

  • United Airlines Flights From Saint Thomas Island to Washington, D.C. Dulles Intl Airport

    United Airlines is one of the most popular airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport, operating 7 flights/week on average for this route. A good United Airlines flight deal for Saint Thomas Island to Washington, D.C. Dulles Intl Airport starts from $298 round-trip, up to an average price of $558. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Sterling
Linthicum Heights
Springfield
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Saint Thomas Island to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Saint Thomas Island to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Saint Thomas Island to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Saint Thomas Island on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Saint Thomas Island to Washington, D.C.?

momondo helps you find the best flight between Saint Thomas Island and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Saint Thomas Island to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Saint Thomas Island are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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